Home / 30,151.97-45,235.44-9,091.56

Finding the Fourth Proportional to 30,151.97, 45,235.44 and 9,091.56

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Solution

The fourth proportional to 30,151.97, 45,235.44 and 9,091.56 is: 13,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.97 : 45,235.44 = 9,091.56 : x
  2. Step 2: Convert to fraction form
    30,151.97/45,235.44 = 9,091.56/x
  3. Step 3: Cross multiply
    30,151.97x = 45,235.44 × 9,091.56
  4. Step 4: Simplify right side
    30,151.97x = 411,260,716.89
  5. Step 5: Solve for x
    x = 411,260,716.89/30,151.97
  6. Step 6: Final answer
    x = 13,639.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.